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Puslapis 1 nuo 174 rezultatus
Sea urchin response to foreign substances.
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An assessment of the response of Strongylocentrotus purpuratus to substances injected into the coelom shows that (i) foreign molecules are cleared from the coelomic fluid more rapidly than native molecules, (ii) coelomocytes can respond selectively to albumins of human and bovine origin, and (iii)
Microinjection of fluorescent tubulin into dividing sea urchin cells.
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To follow the dynamics of microtubule (MT) assembly and disassembly during mitosis in living cells, tubulin has been covalently modified with the fluorochrome 5-(4,6-dichlorotriazin-2-yl)aminofluorescein and microinjected into fertilized eggs of the sea urchin Lytechinus variegatus. The changing
Effect of sea buckthorn on liver fibrosis: a clinical study.
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OBJECTIVE
To appraise the effect of sea buckthorn (Hippophae rhamnoides) on cirrhotic patients.
METHODS
Fifty cirrhotic patients of Child-Pugh grade A and B were randomly divided into two groups: Group A as the treated group (n=30), taking orally the sea buckthorn extract, 15 g 3 times a day for 6
Inhibition by palmitoyl CoA of dynein ATPase from sea urchin spermatozoa.
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ATPase of 14S dynein, extracted from spermatozoa of the sea urchin, Hemicentrotus pulcherrimus, and partially purified by sucrose density gradient centrifugation, was inhibited non-competitively by palmitoyl CoA at concentrations higher than 20 microns, and was stimulated at concentrations between 2
Lemmings into the sea or back across the bridge? The fate of albumin in nephrotic syndrome.
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An intact glomerular filtration barrier is essential for maintaining plasma albumin levels. However, the capacity of the proximal tubule to reabsorb filtered albumin and the subsequent fate of this protein are hotly debated. Weyer et al. find that knockout of megalin and cubilin receptors in a
Isolation and partial characterization of Asian sea bass (Lates calcarifer) Vitellogenin.
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A study was conducted to isolate, partial characterize Asian sea bass (Lates calcarifer) vitellogenin (vtg). Two-year-old juvenile L. calcarifer (n = 10) were given three intraperitoneal injections of 17-β estradiol (E2) at a dose of 2 mg/kg body weight to induce vitellogenesis. Blood was collected
Respiration and fertilizing capacity of sea urchin sperm in presence of serum albumin and jelly coat solution.
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The enhancement of reaggregation of sea urchin blastula cells by exogenous proteins.
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The ability of exogenous proteins to enhance the reaggregation of aggregation-deficient butanol extracted cells has been studied using blastula cells of the sea urchin Arbacia punctulata. Butanol extracts, calcium- and magnesium-free sea-water dissociation supernatant, human plasma fibronectin and
Sea buckthorn (Hippophae rhamnoides) proanthocyanidins inhibit in vitro enzymatic hydrolysis of protein.
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Interactions of phenolics with other food constituents and digestive enzymes are likely to have interference with the digestion and bioavailability of food and phenolics. In this study the effect of sea buckthorn proanthocyanidins on in vitro digestion of protein was evaluated. Optimization of the
PURINE- AND PYRIMIDINE-SPECIFIC ANTIBODIES: EFFECT ON THE FERTILIZED SEA URCHIN EGG.
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Antiserums from rabbits immunized with several purine- and pyrimidine-containing albumin conjugates can penetrate and become fixed within cells of Arbacia punctulata. All of these specific antiserums were found to inhibit embryonic development of the fertilized sea urchin egg. The stage of
A Zn2+-dependent and histone H1-specific protease in sea urchin sperm.
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Protease activity was extracted from sea urchin sperm with 1% Triton X-100 and partially purified by DEAE-cellulose and Sephadex G-100 chromatography. The enzyme preferentially degraded histone H1, while showing only a weak activity toward other histones. Heat-denatured casein and bovine serum
Elucidation of the interaction of human serum albumin with anti-cancer sipholane triterpenoid from the Red Sea sponge.
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A sipholane triterpenoid, named sipholenone A, with anti-cancer properties was isolated from the Red Sea sponge Siphonochalina siphonella and characterized by proton and carbon-13 nuclear magnetic resonance (1 H NMR and 13 C NMR) spectroscopies. The goal of this study was to visualize the binding of
PLASMA COLLOID OSMOTIC PRESSURE IN CHRONICALLY DEBILITATED LOGGERHEAD SEA TURTLES (CARETTA CARETTA).
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Colloid osmotic pressure (COP) is an important component of the forces that manage capillary filtration and is determined by circulating plasma proteins. Patients affected by conditions resulting in hypoproteinemia often suffer severe hemodynamic derangements, including decreased COP. Because
Sea urchin egg receptor for sperm: the oligosaccharide chains stabilize sperm binding.
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Sulfated O-linked oligosaccharides from the sea urchin egg receptor have been shown to bind to acrosome-reacted sperm and to inhibit fertilization in a competitive bioassay. However, the inhibitory activity of these isolated chains was much lower than that of a recombinant protein representing a
Immunochemical study of gangliosides at the cell surface of sea urchin embryos.
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Two main gangliosides (G-1 and G-2) were isolated from eggs and embryos S. intermedius. They contain glucose, N-glucolylneuraminic acids, phytosphyngosine, fatty acids and alpha-hydroxy fatty acids. Molar ratios and sequence of these components are the same for both gangliosides, but G-2 contains
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